<template>
  <div ref="echartsMain" class="echartsMain"></div>
</template>

<script>
import * as echarts from 'echarts'
export default {
  name: 'echartsDemo',
  data () {
    return {
      option: {
        title: {
          text: '南丁格尔玫瑰图',
          subtext: '纯属虚构',
          left: 'center'
        },
        tooltip: {
          trigger: 'item',
          formatter: '{a} <br/>{b} : {c} ({d}%)'
        },
        // legend: {
        //   left: 'center',
        //   top: 'bottom',
        //   data: [
        //     'abcd',
        //     'rose2',
        //     'rose3',
        //     'rose4',
        //     'rose5',
        //     'rose6',
        //     'rose7',
        //     'rose8'
        //   ]
        // },
        toolbox: {
          show: true,
          feature: {
            mark: { show: true },
            dataView: { show: true, readOnly: false },
            restore: { show: true },
            saveAsImage: { show: true }
          }
        },
        series: [
          {
            name: '半径模式',
            type: 'pie',
            radius: [20, 140],
            center: ['25%', '50%'],
            roseType: 'radius',
            itemStyle: {
              borderRadius: 5
            },
            label: {
              show: false
            },
            emphasis: {
              label: {
                show: true
              }
            },
            data: [
              { value: 40, name: 'rose 1' },
              { value: 33, name: 'rose 2' },
              { value: 28, name: 'rose 3' },
              { value: 22, name: 'rose 4' },
              { value: 20, name: 'rose 5' },
              { value: 15, name: 'rose 6' },
              { value: 12, name: 'rose 7' },
              { value: 10, name: 'rose 8' }
            ]
          },
          {
            name: '面积模式',
            type: 'pie',
            radius: [20, 140],
            center: ['75%', '50%'],
            roseType: 'area',
            itemStyle: {
              borderRadius: 5
            },
            data: [
              { value: 30, name: 'rose 1' },
              { value: 28, name: 'rose 2' },
              { value: 26, name: 'rose 3' },
              { value: 24, name: 'rose 4' },
              { value: 22, name: 'rose 5' },
              { value: 20, name: 'rose 6' },
              { value: 18, name: 'rose 7' },
              { value: 16, name: 'rose 8' }
            ]
          }
        ]
      }
    }
  },
  mounted () {
    const chartDom = this.$refs.echartsMain
    var myChart = echarts.init(chartDom)
    this.option && myChart.setOption(this.option)
  }
}
</script>

<style lang="less" scoped>
.echartsMain {
  height: 500px;
}
</style>
